baber/WOPTO huggingface dataset:
Patent GB-1262072-A (GB)
Title: Improvements in or relating to electro-hydraulic forming apparatus
Inventor: HARRISON DONALD
IPC: B21D26/10
Filed: 1968-03-27
Abstract: 1,262,072. Electro-hydraulic forming. VICKERS Ltd. 27 June, 1969 [27 March, 1968], No. 14813/68. Heading B3Q. [Also in Division H1] A wire-fed electrode 25, Fig. 4, for electrohydraulic forming apparatus comprises a tubular body 26 having a removable nozzle 28 and means for electrically insulating the wire W from the body, the insulation including an insert 31 in the nozzle for preventing welding of the wire to the nozzle during an electrical discharge and the entry of liquid into the electrode. In the example, a copper nozzle 28 is screwthreaded into a brass body 26 and clamps a collar 39 about a coating or a shrink-fitted insulating cover 38. The wire-insulating bush 27 and insert 31 are of p.t.f.e., the insert engaging screwthreads in the nozzle and having a base small enough to prevent entry of water past the wire. The wire is fully insulated from the electrode. Operation; wire-feed.-The electrode 25 and apparatus for straightening and feeding the wire are mounted on an insulating plate 1, Fig. 1. Wire from a drum is drawn by a driven wheel 13 over straightening pulleys 2, 3, 4, the pulley 3 being adjustable and spring-loaded about a pivot 7. Another adjustable wheel 14 holds the wire against the wheel 13, which is fixed by screws 15 to a plastics roller (16), Fig. 2 (not shown), driven, through a gear-box (18), by an electromotor. The roller (16) has fins (19) to increase the tracking path and prevent electrical leakage to the motor. When sufficient wire has been fed through the nozzle 28 to make contact with an opposite, current-conducting electrode, a D.C. operated brake (not shown) stops the feed-motor, a timer also being included in the control. After the wire has been disrupted by an electrical discharge to form a workpiece in a die, the brake and other controls are released automatically and the feed resumes.
Patent GB-1026893-A (GB)
Title: A gable top container closure
IPC: B65D5/06
Filed: 1964-04-10
Abstract: 1,026,893. Dispensing carton. EX-CELL-O CORPORATION. April 10, 1964 [April 15, 1963], No. 14876/64. Heading B8P. A thermoplastic coated paperboard carton in which the top of one of the end walls is folded outwardly to form a pouring spout, is provided with a non-straight score line 36, which may be arcuate, on each of its roof panels 25, 27 to assist in pushing the top of the wall to its open position. During sealing, the inner rib panels 45, 46 are heated to a lesser degree than the remainder of the closure, to facilitate opening.
Patent GB-401765-A (GB)
Title: Improvements in the charging pumps of two stroke cycle internal combustion engines
IPC: F02B33/00
Filed: 1932-05-26
Abstract: 401,765. Pumps. CROSSLEY, SIR K. I., and CARTER, H. D., c /o Crossley Bros., Ltd., Openshaw, Manchester. May 26, 1932, No. 14940. [Class 7 (ii).] A two-stroke-cycle compression-ignition engine is charged by a pump in which two or more pistons a, b, are operated by a single connecting rod. Piston a has a cylindrical extension h in which the pin m is pivoted ; it may be withdrawn through openings n in the casing member i by turning the connecting rod k after detachment from the crank pin, through a right angle. Inlet and outlet valves are superposed in a cylindrical receptacle o in the pump casing. Outlet valves rare adjacent to each other and have a common delivery chamber s. An inlet valve t is disposed beyond each outlet valve with an intervening space u leading to a port v in the pump cylinder wall. Spaces w beyond or between the inlet valves serve for air inflow. The movable parts of the valves are spring-loaded rings 3, each associated with a guard plate 4, all mounted around a central spindle x. A handgrip x2 facilitates withdrawal of the valves as a unit, and stops 5 serve for positioning purposes.
Patent GB-1431660-A (GB)
Title: Controlled velocity drive
IPC: G05D3/12
Filed: 1973-03-28
Abstract: 1431660 Automatic control of speed EATON CORP 28 March 1973 [31 March 1972] 14944/73 Heading G3R A control system for moving a load comprises means for generating a reference pulse train where each pulse represents a desired position increment and the frequency of the pulse train represents the desired speed of movement, means for sensing the actual position and speed of the load and producing a second pulse train accordingly, digital summing means comprising an up/down counter for summing the pulses of the reference and second pulse trains to produce a positional error signal which is used in a velocity control means to change the speed of movement of the load. In the arrangement shown the motor 16 drives a load on shaft 14 with an encoder for providing a pulse train to be fed back on wire 30. It also drives a tachogenerator which produces an analogue speed signal on line 38. The reference pulse train is generated by a crystal oscillator which feeds a phase locked loop circuit including a voltage controlled oscillator to provide a stable reference frequency generator 18. The reference pulses are passed through digital/analogue converter 22 to provide a signal indicative of the desired velocity of load 14 at the input of amplifier 42. The reference pulses also are passed through divider 26 to the up terminal of the up/down counter and the pulse train on line 30 is taken to the down terminal of the same counter. In operation the count in the counter represents the position error and this is converted to analogue form and supplied to amplifier 42. The analogue signal representing the desired velocity and the tachogenerator signal on line 38 are combined in compensation circuit 34 and taken through a differentiating circuit to provide a damping signal at amplifier 42. The signals on lines 24, 32 and 36 are combined in amplifier 42 to produce a signal on line 12 to control the speed of the load so that a zero average speed error results over a predetermined time interval. A circuit is included to prevent pulses arriving simultaneously at both inputs of the counts.
Patent GB-800965-A (GB)
Title: Improvements in castors
IPC: B60B33/02
Filed: 1956-05-14
Abstract: 800,965. Castors. FLEXELLO CASTORS & WHEELS, Ltd., and WAPSHOTT, S. E. Nov. 16, 1956 [May 14, 1956], No. 14973/56. Class 52(1) A locking device for a castor comprises a plunger 6 slidable in a tubular housing 2 carried by a castor yoke 4 and depressable by a cam 5 against a spring 8. The nose of the plunger engages the tread of the bowl 7, directly or through an interposed leaf spring, and a nib 9 on the plunger engages a toothed ring 11 fixed on the castor mounting. The cam is preferably pedaloperated.
Patent GB-1381500-A (GB)
Title: Toys
IPC: A63H13/10
Filed: 1973-03-28
Abstract: 1381500 Manipulative toys V PETRUSEK 28 March 1973 14985/73 Heading A6S A manipulative toy comprises an integral hollow body of resilient material having at one end a normally closed elongated slot which is opened by squeezing the body in the direction of the slot, an elastic cord connected to the hollow body extending out through the slot and a relatively heavy article being attached to the free end of the cord. The relatively heavy article may be thrown, so that the resilience of. the cord pulls it smartly back towards the hollow body, which is squeezed to open the slot and catch the article. In one form, the hollow body 10 of resilient material simulates a frog's head, shown as squeezed by an operator's hand 12 which opens the slot representing its mouth ready to catch a simulated fly 18 on the end of an elastic cord 14. When the fly 18 enters the frog's mouth, the head 10 is released, and the slot or mouth shuts to swallow the fly, Fig. 2 (not shown). A ring 16 on the end of the cord 14 retains it in the head 10. In another form, the resilient body simulates a squirrel's head, Fig. 3 (not shown). In yet another form, the resilient body simulates a sandwich, and the article simulates a pickle, Fig. 4 (not shown). Alternatively, the resilient body and the article may simulate a king- fisher's head and a fish, a crow's head and a kernel of corn, &c. As an alternative method of play, the ring 16 may be placed upon the finger, and the head, &c 10 allowed to slide down the cord 14 so that it can be bounced up and down.
Patent GB-128228-A (GB)
Title: Improved Dismountable and Adjustable Framing for Braiding Machines.
Inventor: RAFER ERNEST
IPC: D04C3/00
Filed: 1916-10-21
Abstract: 128,228. Rafer, E., and Rafer, C. Oct. 21, 1916. Rod and wire couplings. - Horizontal and vertical tubular or solid members c, e are connected by a coupling comprising members a embracing the member c and formed with holes d to embrace the member e, the whole being tightened by a bolt b.
Patent GB-917482-A (GB)
Title: Preparation of cis 1,4 polyisoprene
IPC: C08F136/08
Filed: 1959-05-04
Abstract: Isoprene is polymerized in presence of a catalyst which comprises a hydrocarbon-insoluble reaction product of an aluminium alkyl and titanium tetrachloride wherein the original molecular ratio of aluminium alkyl to titanium tetrachloride is at least 2:1 and not more than 4:1.  The isoprene may be polymerized in the presence or absence of an inert solvent or diluent, e.g. pentane, hexane, benzene, xylene, and toluene.  The temperature of polymerization may be 0 DEG -90 DEG C. or above.  The ingredients of the mixture to be subjected to polymerization may be added in any order.  In the production of the catalyst, the presence of oxygen and moisture should preferably be avoided.  The aluminium alkyl may be aluminium triethyl, tri-propyl, tri-isobutyl, or tri-octyl. In an example, tri-isobutyl aluminium in heptane is mixed with titanium tetrachloride in heptane and allowed to react at room temperature. The precipitate was separated from the liquid, shaken several times with fresh heptane and separated after each treatment.  It was then dispersed in fresh heptane and used as catalyst for the polymerization of isoprene.  The polymer obtained is predominantly cis-1,4-polyisoprene.
Patent GB-626565-A (GB)
Title: Improvements in or relating to manifolding assemblies
IPC: B42D15/00
Filed: 1947-06-10
Abstract: 626,565. Manifolding assembly. NATIONAL CASH REGISTER CO. June 10, 1947, No. 15208. Convention date, Feb. 11. [Class 16] A manifolding assembly of sheets with transfer means 14 between comprises a memo sheet 11 having at least one defined area registering with similarly defined areas on the other sheets, another sheet 12 having a detachable section and a further sheet 13 consisting of tabulating machine stock for use as a tabulating machine control card. The memo sheet 11 is detachable at 15 from the assembly, which is secured by staples 16, and the area headed "Articles " registers with the "Articles columns in a plurality of sheets 12 and the card 13. The columns " Quantity " and " Price " register with the stubs of the under sheets, from which the sheets 12 and card 13 are detachable. The quantity and price, number and details other than "Articles " are printed in a sales register and the card 13 may be automatically detached and deposited in a locked compartment. To facilitate this, the card 13 is slit at right angles to the bottom edge and attached to the stub by a short weakened section at an angle of 45 degrees to the top edge.
Patent GB-864575-A (GB)
Title: Device for the measurement of angles in machine tools
IPC: G01C1/02
Filed: 1959-05-05
Abstract: 864,575. Levels. MILLER, K. May 5, 1959 [May 6, 1958], No. 15305/59. Class 97(2) A device for the measurement and adjustment of the angular position of a swingable machine tool head is capable of being mounted on the machine tool head in the same way as the tool and is provided with a microscope 11, Fig. 2, for reading a circular scale 4 which is aligned exactly parallel to the swivel plane of the tool. The shaft 1 is tapered for engagement, for instance,_with the inner cone of a milling spindle and is releasably engaged with the casing 5 of the device so that it may be replaced by other members. The microscope 11 and a doublelevel 10 are carried by a lid 9 which is secured to a ring 12 and may be rotated by screws 17, Fig. 1, operating a worm. drive 16. The scale 4 is normally stationary but its zero position may be adjusted by screws 29 engaging a disc 15 which carries the scale 4. To ensure that the scale 4 is parallel to the swivel plane of the tool, a lens 26 or system of lenses is provided in the optical axis 24 and an edge, rule or the like of the machine tool perpendicular to the swivel plane is sighted. The edge appears to pass through two pairs of double marks in the field of vision, if the setting is correct. By turning a ring 22, by means of a knob 23, the prism 20 which is carried by the ring 22 may be removed from the optical axis of the microscope 11 and replaced by an aperture in the ring 22. Light entering through slot 19 in casing 5 normally illuminates the scale 4. In a modification, the shaft 1 is connected to the top of the casing through a plane-parallel intermediate plate.
Patent GB-344293-A (GB)
Title: An improved apparatus for extracting liquid from finely divided material
IPC: B04B7/18
Filed: 1930-05-19
Abstract: 344,293. Centrifugal machines. ALTPETER, L., 38, Walpurgisstrasse, Essen, and GUTEHOFFNUNGSHœTTE OBERHAUSEN AKT.-GES., Oberhausen, Rhineland, both in Germany. May 19, 1930, No. 15355. [Class 23.] Density separators.-The wall of a separator used for extracting liquid from wet finely divided material is provided with hollow bodies which project into the solid zone of the centrifuged material and continuously lead away the liquid separated from the solid constituent. The hollow body a, Fig. 2, has recesses b on the part which enters the zone of separated solids, and channels c which may be of cylindrical or conical bore open into the recesses. Some of the moisture not separated out to pass away with the general central stream of the separator, passes through the channels c and the perforated pipe e to the trough f. In order to prevent fine solids from passing out, a wire mesh or filter cloth d is held inside the hollow member a by the pipe e. The parts can be cleaned by the supply of water under pressure to the pipe e. The body a may be formed of rings placed side by side and provided with openings for the liquid to pass through; various constructions of such rings are described. In the modification shown in Fig. 11, the hollow body is elongated in the vertical direction, and the component rings g are held together by bolts i<1> which pass through a frame h<1> serving as a joint piece for the wall of the centrifuge drum. The liquid passing through the hollow body is dis. charged through the openings m<1>.
Patent GB-553959-A (GB)
Title: Improvements in or relating to the manufacture of olefine dichlorides
IPC: C07C17/02
Filed: 1941-11-28
Abstract: 553,959. Olefine dichlorides. DISTILLERS CO., Ltd., GALITZENSTEIN, E. G., and WOOLF, C. Nov. 28, 1941, No. 15364. [Class 2 (iii)] Olefine dichlorides are made by introducing chlorine and an olefine or a mixture containing an olefine into an anhydrous inert solvent containing anhydrous ferric chloride. Suitable solvents are olefine dichlorides, carbon tetrachloride, 1-1-2-trichlorethane, and pentachlorethane. Specification 425,061 is referred to. Reference has been directed by the Comptroller to Specification 505,196.
Patent GB-1099461-A (GB)
Title: Coating process
Inventor: MCPHERSON NEIL
IPC: B05D7/14
Filed: 1963-04-18
Abstract: Metal articles are treated with an aqueous dispersion of a coating composition which chemically attacks the surface and generates ions which render the dispersion unstable adjacent to the surface and cause coagulation of the disperse composition on the surface. Preferred compositions are aqueous, acidified with organic or mineral acid to pH below 5, preferably below 3.5; the coating material may be a butadiene-styrene co-polymer, an acrylic or vinyl-acrylic co-polymer, and a fatty-acid-esterified epoxy resin.  The compositions may be applied by dipping, spraying and flowcoating.
Patent GB-722135-A (GB)
Title: Improvements in or relating to spindle mountings
IPC: B23Q1/70
Filed: 1952-06-18
Abstract: 722,135. Bearings. REASON, R. E., and KAPELLA, Ltd. June 10, 1953 [June 18, 1952], No. 15411/52. Class 12 (1). A spindle A is mounted in a fixed hollow housing B by bearing means including a member G having a taper bearing surface co-operating with the spindle, which member G is accurately positioned axially with respect to the spindle by members G' and G<SP>2</SP> secured to the spindle, and is radially located in the housing B by a ring of balls J' in a cage J<SP>2</SP> and held against rotation therein by an Oldham's coupling member H. The spindle is mounted vertically, and part of its weight is taken by springs E' attached to a driving member E which is rotably mounted by a row of balls C<SP>1</SP> at the top of the housing B. An Oldham's coupling member F is disposed between the member E and shaft A. A similar taper bearing K is arranged at the lower end of the shaft and the cage members J<SP>2</SP>, J<SP>6</SP> are forced apart by a spring J<SP>3</SP>. A thrust bearing comprises a flange A<SP>2</SP> secured to the spindle A and fitting between flanges B<SP>1</SP> B<SP>2</SP> secured to the housing B. In a modification the member G, Fig. 4, has a spherical outer surface closely fitting within the housing B. In further modifications, thrust bearings at the lower end of the spindle are formed by cooperating spherical bearing surfaces on the spindle and on the housing. Specifications 621,126 and 716,719 are referred to.
Patent GB-496882-A (GB)
Title: A hand grip for the handles of tools, sports clubs and other implements
IPC: B25G3/02
Filed: 1937-06-04
Abstract: 496,882. Handle - grips; handles. MALDEN, W. J. June 4, 1937, No. 15520. [Class 61 (i)] [Also in Group XV] A handle for tennis rackets, sports clubs, hand tools, &c., or a handgrip sleeve therefor, has a number of recesses 1, 3, 5 and shoulders 2, 6 contoured to provide a grip for the thumb and fingers and diminishes in thickness from the gripping portion to present a flattened bed 7 for the base of the palm of the hand.
Patent GB-828707-A (GB)
Title: Improvements in the manufacture of high linear polyesters
Inventor: LINCOLN JAMES
IPC: C08G63/42
Filed: 1956-05-18
Abstract: High molecular weight linear polyesters are made by heating to a temperature at which polyesterification occurs a free dicarboxylic acid with a cyclic glycol carbonate, preferably in the presence of an ester-interchange catalyst, until the reaction mixture becomes substantially homogeneous, adding as a second-stage catalyst an organic acid salt of manganese or antimony, or a salt in which antimony, zinc or aluminium is present in the anion, and thereafter heating the resulting composition until a high linear polyester has been formed.  The process may be effected as described in Specification 707,913 or 764,964.  The second stage catalyst may be added to the reaction mixture as a powdered solid or dispersed in a liquid, e.g. a glycol, a mixture of glycol and water or a mixture of a cyclic glycol carbonate and water.  Specified polycarboxylic acids are adipic, terephthalic, substituted terephthalic, diphenyl-4,41-dicarboxylic, a ,o  - diphenylalkane - 4,41 - dicarboxylic and a ,o  - dipheboxyalkane - 4,41 - dicarboxylic acids. Specified cyclic carbonates are ethylene, propylene and trimethylene glycol carbonates. Specified second-stage catalysts are manganous acetate, antimony potassium tartrate, alkali metal antimonates and alkali and alkaline earth metal aluminates or zincates.  Examples describe the making of fibre-forming polyethylene terephthalate from terephthalic acid and ethylene carbonating using sodium terephthalate and magnesium ribbon as an ester-interchange catalyst and manganous acetate as a secondstage catalyst. Specifications 740,381, 742,793, 742,810, 742,811, 753,880, 775,316, 777,215, 777,216, 792,011 and U.S.A.  Specifications 2,720,503, 2,720,504, 2,720,505, 2,720,507, 2,727,881 and 2,729,620 also are referred to.
Patent GB-804917-A (GB)
Title: Phase detectors
IPC: H04N9/455
Filed: 1955-05-31
Abstract: 804,917. Phase discriminators. HAZELTINE CORPORATION. May 31, 1955 [June 9, 1954], No. 15579/55. Class 40 (5). In a balanced phase detector for synchronizing a television colour reference oscillator the composite video signal including the subcarrier reference phase burst is applied across deflection electrodes 44, 45 of a beam deflection tube with earthed anode 36 rendered conductive only by line flyback pulses applied to its cathode 38 from a transformer 27 and oscillations from the colour reference oscillator are applied to the grid 39 to modulate the beam intensity. The respective electron currents to the first anode 36 having a load resistor 50 and to a second anode 37 having a load resistor 51 are therefore dependent on the phase difference between the subcarrier colour burst oscillations between deflection electrodes 44, 45 and the modulation on grid 39, and the mean voltages across resistors 51, 50 shunted by capacitors 49, 52 are differentially combined as shown to give an output from across capacitor 52 in magnitude and polarity dependent on the phase difference. The line flyback pulse may be applied to capacitor 49 across a circuit 47, 48 series tuned to the subcarrier frequency. In a modification the carrier burst and local oscillations are applied to the third and first grids 62, 61 of an earthed anode multi-grid tube rendered conductive as before by line flyback pulses applied to the cathode, differential smoothed outputs being derived from an anode circuit resistor 67 and from a resistor 68 connected to a grid 63 acting as a secondary anode developing a grid current dependent on the relative phases applied to the grids 61, 62. Alternatively the anode 66 may be connected to a bias source 90.
Patent GB-624212-A (GB)
Title: Variable-speed friction drive mechanism
IPC: F16H61/664
Filed: 1947-06-13
Abstract: 624,212. Variable-speed friction gearing ; locking rods. OSTERBERG, I. A. June 13, 1947, No. 15615. [Classes 80 (ii) and 80 (iii)] In a variable-speed friction gearing in which the driving and driven discs are perpendicular and the driven disc is movable only when the driving disc has been moved out of engagement, the driven disc is locked in position by an eccentric displacing a rod connected to the driven disc yoke, so that the yoke is only movable when the discs are disengaged. The driving disc 7 is mounted on a shaft 39 carried in bearings 8, 9 rigid with a frame 10 which is slidable longitudinally against a spring 24. The driven disc 5 is slidable transversely on a shaft 1 with which it is rotationally connected through a keyway 6, transverse movement being imparted through a yoke 4 moved by a lever 34 through a linkage system. The discs are disengaged by movement of the frame 10 through a lever 16 and link 15, movement of the lever simultaneously releasing an eccentric 21 in a housing 22, through the link 19 ; the eccentric normally locking a rod 23 fixed to the yoke 4, under the tension of a spring 26.